Write a numerical expression for the phrase and simplify it.Twelve minus four plus negative twenty one
A. 12 + 4 + (-21); -5
B. 12 - 4 + (-21); 29
C. -12 - 4 + (-21); 5
D. 12 - 4 + (-21); -13
Answer: D
Mathematics
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Solve the problem.Find the APY for an APR of 4.5% compounded continuously.
A. 4.6028% B. 4.5940% C. 4.5765% D. 4.5000% E. 4.5506%
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Simplify the exponential expression. Write the result using only positive exponents.
A. 
B. r5
C. 
D. r9
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Simplify.|51|
A. 51
B. 
C. -51
D. 0
Mathematics
The circle or ellipse shown in the calculator-generated graph was created using function mode with a square viewing window. What are the two functions y1 and y2 that were used to obtain the graph whose equation is given?x2 + y2 = 25
A. 
, 
B. 
, 
C. 
, 
D. y1 = 
, y2 = - 
Mathematics